Heating-furnace



UNITED STATES Parr;

NT oFificr..

EMIL c. vnl iNiiELR, or -wEsTMoN'r BOROUGH, PENNSYLVANIA.. i

HEATING-FUNNACE.

Specication of -Letters Patient. Patented Apr. 26, y21921.

appigcationlfiied september is, i919. serial No. 324,659.

post-olice address is Johnstown, Pennsylvania,) have invented certain new and useful vIiiiproveiiieiits in Heating-Furnaces;

and I do hereby declare the following to be acters refer to likeparts:

a full, clear, and exact description of the invention, such aswillenable others skilled in .the art to which it appertains to make and use the same.

My invention relates to improvements in coal-fired heating furnaces and more particularly to the means for supplying air to,

and the method of removing ashes from ysuch furnaces.v

The object of myinvention is to provide a Stoker-fired coal heatingfuriiace' having improved'means for supplying airv to the fuel whereby more complete combustion is brought about and to provide means wherew by large clinkers' may be remved 'through side doors, thus eliminating any shut-downs,

such as now. exist caused by cleaning the fires through the front doors in common use. In general my furnace-consists of a fuel feeding4 mechanism, which distributes thev fuel uniformly-in the combustion chamber, a stationary grate and a rockin removing ashes. Air is supplie under sides of the grates by means of blast pipes connected with a supply of air under pressure, and side cleaning doors are provided forfthe'removal of clinkers.

Having thus given a general description Vof viny invention, I will now, in order to make the matter'more clear, refer to the annexed sheet of drawings, which forms part of this specification, 'and in whichlike char- Figure 1 is a vertical longitudinal sectional elevation through the stoking end of v a heating furnace embodying myinvention, ytaken on the line I-I of Fig. 2; Fig. 2 is a horizontal section taken'on the line II-II of Fig. 1; Aand Fig. 3 is a transverse sectional elevation through one of the furnace retorts taken on theline III- III of Fig. 2.

Referring now to the Icharacters of reference on the drawings :1 indicates the furnace'in general, 2 are billets to be heated which are -forced along by any suitable means and dropped one at a time into the l water-cooled, notched discharge plate 3,

ate for to the from which .theyr are removed through the side 4door openings 5 in the furnace wall.

4 are the water-'cooled vwalls of the fire-box,

6 are poke holes in the side walls ofthe furnace, the incandescent coal. Ais 7, yand the green coal is 8. This green coal 8 is fed by a hopper 9, to the trough-shaped retorts- 10,

from which it is forced to 'the upwardly iiilclined endsV 11 of the retorts 10 and thence posite end of one or more of the rocker arms L15 is connected by a rod 17 to the bar 18, of

the rocking grate 19, whereby the bars of t the grate 19 may be caused'to rock at theq same time that the charging plunger 12 is caused to reciprocate, thereby allowing the ashes to fall through the grate, thus makin room for the fresh green coalwhich is force into the combustion chamberI from the retorts 10. 20 are cleaning doors in the 'side walls of the furnace whereby any large clinkers can be removed from the grate 19, thus eliminating any'shut-downs such as occur at present when cleaning fires through the usual front doors. 27 is an auxiliary stationary grate located near the upper part of the lire-box through which an ladditoiial quantity of air is supplied to the incandescent bed of coal thereby facilitating more complete combustion. Air is supplied to the under sides of the grates 'by the blast 'pipes 21 and 22, and also to the top of the fuel bed by means of the blast pipe 28, which has a plurality of nozzles 29. 23 is a pan to catch the vcoal which may fall through the stationary grate 27, before itis cokedor fused' into larger sizes; lcleaning doors .30 being provided inthe side walls of the furnace for removing said coal from time to time. A hinged ash door 24 may be opened to permit ashes which fall through the grate 19 to be deposited on an ash conveyer 25, provided with flights 31,which ma convey and deposit'thein where desired. leaning doors 26 are provided in the side walls of the furnace as shown, to give ready access to the retorts- 10, and the front part of the combustion chamber.

Although I have shown and described my invention 'in Considerable detail, I do not' wish to be limited to the exact and specific details thereof, as shown and described, but

may use such modications in, substitutions for or eqaliivalents thereof, as are embraced within t pointed out in the claims.

Having thus described my. invention,

whatl claim-,and desireto securev by Letters 10,.,

,Patentisz--v. Y. Y.

1; A4 furnace comprising. 'a combustion i "chamber, a'heating chamber leading therel from, a water-coolediire-box below the'rear of said combustion chamber, a' stationary ,15 ate at the top of the front wall .of said from, means for Supplying air to the upper" grate into vthe fire-loon.,-

re-boX ia rockingl grate at the'botto'm of said fire-box, means for supplying air to the under sides of said grates, andmeansf for Vfeeding coal upwardly into said combustion chamber'andthence 'across-said stationary Alfurnace v comprising combustion chamber, aheating chamber lleading theref part of the 'combustion chamber, a watercooled fire-box below the .rear of said combustion chamber, a'"stationary grate at the means for supplying air-to the under-sides fire-box, and :means for collecting any coal 4falling; through stationary grate.

chamber, ,a heating chamber leading there= the bottom of. said fire-box, means 'for supfroma-'watercooled {ire-box. below the rear ofsaid combustion chamber, an inclined sta'- l tionary 'rate at the top of thefront walll o'fvsaidf re-box, aroc'king grate at the bot? ftoriijoff-said relboX,-means for ,supplying air to the under-sides of said grates, means for feeding fuel upwardly into said com= bustionchamber and thence across said stavtionary grateinto the fire-box, and means forl collecting and removing the ashes fall -ing'gL-through therocking grate.

` A. In'a'furnace ofthe character described, afheatingchamber, a combustion chamber connected with. andadap'ted to supplyheat- 4 to the heating "chamber, a Afire-boi; below f.

e scope' of my invention, or as signature.

.combustion chamber tothe top ofl the 'frontv wall ofthe fire-box, a rocking'gr'ate'at. thev bottom of the fire-box, means for supplying" air to the under-sides of' said grates, means for feeding coal fupwardly*into, said lcombustion chamber and theIICeacrOSsSaid sta'- tionaryfgrate into the fire-box, means4 for collecting4 -and* removing the ashes "falling through., the rocking-y grate,f and cleaningdoors inthe s ide` wall'sof thefurnace adaptedto permit removal of clnkers from above.

the rockinggrate. j i 5. In-afurnace ofthe character described,

a heating chambena combustion chamber connected with andi adapted to supplyheat to the'hjeating chamber, al 're-boxbelow the g rear of' said combustion chamber, an inf clined .stationarygrate at Athe 'top of the front wall ofthe fire-box, a rocking ngrate at the bottom o f there-box, means for oscillating said rocking grata,a reciprocatin'g .charging plungerl and connections'zadapted 'tofeed coalfil'pwardly into said combustion chamber and thence across saidV stationary grate into the fire-box, and means forsupplyin air to the -limiter-sides of said grates. 6. v p furnace comprising a comlrvmstion chambena heating chamber leading therefrom, a water-cooled fire-box below the rear portion of said combustion chamber, an inclinedV stationary. grate extending; froml about the middle portion of the bottom of said' combustion chamber tothe top of the frontwall of the'iire-box, a rrocking grate at chamber, a reciprocating' charging plunger mounted in each .retort and adapted to feed coal upwardly into the combustion-'chamber and thence across the stationary-grate into the fi1e.-boX,` means for removing coal fallL I -ing through the stationary'grate, and meansv for collecting and 4removing ashes falling through the rockingfgrate.

vIn witness whereoflA hereunto affix my i 'v E'MiLfo. DANNER. 

